The default sort order for an alarms list depends on the type of alarm page and the
In the case of the Alarm Summary page, the equivalent parameter is
| Type of view |
[Alarm]SummarySortMode |
Default sorting order |
|---|---|---|
|
Sequence of events |
0 |
{TIME,Descending} |
|
Sequence of events |
1 |
{TIME,Ascending} |
|
Alarm Summary |
0 |
{Ack,Ascending}{Active,Descending}{TIME,Descending} |
|
Alarm Summary |
1 |
{Ack,Ascending}{Active,Descending}{TIME,Ascending} |
Whatever sort order you specify, the system will append the following default set of order by fields:
|
Alarm list display |
Appended default sort order |
|---|---|
|
Sequence of events |
RecordTime (ASC or DESC, depending on [Alarm]SortMode) SeqNo (DESC) Cluster (ASC) CommentNo (ASC) |
|
Alarm Summary |
As per [Alarm]SummarySort and [Alarm]SummarySortMode |
|
Active, Disabled, Acknowledged, Off, On, Unacknowledged |
z (ASC) Active (DESC) As per [Alarm]Sort and [Alarm]SortMode |
|
Configuration (non-hardware alarms in system) |
Tag (ASC) |
Example
According to the order you specified, if two records result in being equal, the records will adhere to the default sort orders above. In the example where tags have no equipment specified (and therefore are ordered equally) the alarms will be ordered according to Ack, Active, Time.
If you specify Active (ASC), then the resultant order on the active page will be:
Active (ASC), Acknowledged (ASC), [Alarm]Sort / [Alarm]SortMode.
You can customize the order in which alarms are displayed on the alarm summary page by using the SummarySort and SummarySortMode parameters.
The SummarySort parameter allows you to display alarms according to OnTime, OffTime, and AckTime. SummarySortMode determines if the alarms will be arranged in ascending or descending order. (The order set using these parameters will override the alarm category priority order.)
Published June 2018